User's Manual

E-31
Bluetooth
TM
Communication
Bluetooth
TM
protocol can also be used to transfer data between two Handheld
Terminals.
With Bluetooth
TM
the two Handheld Terminals should be located within about three
meters (9
'10
3
⁄
8
") from each other, as long as there is nothing blocking the path between
them.
Important!
Observe the following precautions to help ensure that data communication is
successful.
• Make sure the Bluetooth
TM
devices are located within three meters (9'10
33
33
3
⁄⁄
⁄⁄
⁄
88
88
8
") of
each other. Surroundings (obstacles) may require a shorter distance between the
two devices.
• Make sure there is at least two meters (6
' 7") between the communicating
devices any electrical appliance, audio-visual equipment, office equipment,
digital cordless telephones, facsimile machines, etc. Particular care is required in
the case of a microwave oven. Allow at least three meters (9
'10
33
33
3
⁄⁄
⁄⁄
⁄
88
88
8
") between the
communicating devices and a microwave oven. Turning on such a device when it
is nearby can interfere with proper data communication or cause interference
with TV and radio reception. Images produced by certain UHF and broadcast
satellite channels may become blurry.
• Normal data communication may not be possible in an area near a broadcast
transmitter or wireless transmitter. If this happens, move to a different location.
Normal data communication may not be possible in areas exposed to strong
radio waves.
• RF Wireless LAN Interference
Because Bluetooth
TM
and RF wireless LAN use the same frequency band
(2.4GHz), radio interference can occur if there is a wireless LAN device nearby.
This can result in lower data communication speeds, or even make it impossible
to establish a connection. If this happens, try the following countermeasures.
• Move at least 10 meters (32
'10
3
⁄
4
") away from the wireless LAN device.
• If you cannot keep the distance at least 10 meters (32
'10
3
⁄
4
") or more between the
Handheld Terminal and a wireless LAN device, turn off the power of either the
Handheld terminal or the wireless LAN device.
• Set the RF wireless LAN mode of the Handheld Terminal to off.